Apparatus for coiling steel and other wire or metal.



S. G. OADDY.

APPARATUS FOR OOILING STEEL AND OTHER WIRE OR METAL.

APPLICATION FILED JAN. 16,1911. 1,078,485, Patented Nov. 11, 1913.

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CDLUMBIA PLANOURAPH COHWASHINOTGNA D. c

s. 0. CADDY. APPARATUS FOR GOILING STEEL AND OTHER WIRE 0R METAL.

APPLICATION FILED JAN. 16,1911.

1,078,485, Patented Nov. 11, 1913.

3 SEEBTS'SHEET 2.

S. G. GADDY.

I APPARATUS FOR 001mm STEEL AND OTHER WIRE OR METAL. 1 ,078,485.

APILIOATION FILED JANJG, 1911.

Pateqted NOV. 11, 1913.

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lll%/ WITNESSES ATTORNEY W/INVENTOR COLUMBI. PLANOGRAIH (IO-,WASHINBTDN, D. c.

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svmvnr CHARLES earner, or KEYNSHAM, NEAR isnrsron, ENGLAND.

V APPARATUS FOR COILING STEEL AND OTHER V/IRE OR METAL.

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Specification of iLetters Patent.

Application filed. January is, 1911. Serial No. 602,881.

To all whom 2'15 may concern:

or Metal, of which the following is a speci-j fication.

According to my inventionl employ a pair of longitudinally grooved dies through a which thewire is fed and that are adjustably held in a slidingcarrier and adapted to bear on the wire or metal being coiled to press it tightly on to a central mandrelupon which it is wound.

In the accompanying drawings with reference to which I will describe my invention :--Figure 1 is an elevation of a machine constructed according to my invention;

Fig. 2 is a sectional elevation of the righthand drivenhead; Fig. 3 is a detail view of the sliding die carrier; Fig. at is a plan view of the same, and Fig. 5 is a detail perspective view of one of the dies. Fig. 6 is a plan view of the automatic chuck. Fig. 7

is a transverse sectional view of the same.

Fig. 8 is a detail perspective view of the Fig. 10 is a transverse sectional view of the automatic clutch, illustrating the arrangement of the spring.

As shown and in connection with a machine having a pair of driven heads 1 provide a suitable die carrier a that is slidably supported at its ends on a pair of guide rods 5 running parallel with the rotating mandrel 0 of the machine or lathe on which the wire d to be coiled is wound. The die carrier a is provided with a transverserecess, for containingthe lower die a andwith a hinged or otherwise adjustable member a thereon having a corresponding opposite recess for holding an upper die a The hinged member a is adapted to be held in adjustable relationship with the carrier proper a by means of suitable winged nuts or screws 6 thatcan be adjusted to control the pitch or closeness of the coils of the wire (Z being coiled. The dies may be made of metal or vulcanite or other material according to the metal wire being used, and they may if desired be made reversible and adaptabldfor coiling two or more difierent sizes of wires cZ or diameters of coil. A suitable tensioning device (not shown) isprovided on, the wire carrier or reel for controlling thefeed of the wire which passes therefrom overa guide wheel f and through a hole 9 through both the carrier plate a and the upper die a and on to the mandrel 0.

In operation the end of the wire a? is held on the mandrel by means of a hollow spring controlled or automatic chuck member 72 which is driven from the right hand head i provided with a fast and loose pulley j is.

The automatic chuck it comprises three rollers 1, which are held in a cage 2 forming an element ofthe chuck, and this element is 1n screw engagement with the rotating head.

The other element consists of an outer sleeve l havm g a limited rotary movement through a small. angle independently of the firstmentioned element, a springtl being interposed between and connected at its terminals 9 and 10 with the two members or elements to firmly grip them in the position shown in Fig. 7, so that the rollers are pressed toward the center of the chuck by interior cam surfaces 5 of the outer sleeve. When the outer sleeve is turned back against the springpressure, the rollers are free to move radially outward, and they can be freely pushedvback by the insertion of any article which immediately upon the release of the outer sleeve will be tightly gripped therein owing to the action of the cam surfaces 5 onthe rollers 1. In operation, when-the roller. cage element is fixed to the rotating head, the outer sleeve element will rotate with it so long as it is not interfered with, but as soon as any pressure is applied sufli cient to ovcrcomethe spring,then it will be retarded and the rollers will be free to move outwardly, thus releasing their grip on any thing'placed between them. this soon as-the pressure on the sleeve is removed, the sleeve will catch up relatively to the cage member and automatically force the rollers toward Patented nevi ii i913.

device and over the guide pulley f, the carrier a a and wound tightly around the mandrel 0. The dies at a are adjusted to bear tightly on the outside of the wire coil cl and to press it on to the mandrel 0 as it is wound thereon; and the formation of the coil and increasing of the length of the same at the same time causes the die carrier to travel to the left along the length of the mandrel against the influence of the springs m on the rods Z).

The die carrier a must be stopped when it has reached the end of the mandrel 0 and in order that it may be possible'to coil wire to. any length, I provide to this end a suitable manually operated arrangement, or any other suitable means so that when the carrier a reaches the end of its travel there may be brought into operation a brake plate or device such as n that will momentarily be depressed to release the grip of the chuck it by checking its rotation and thereby allow the coiled wire (Z to be pushed through the hollow chuck it and bearing of the driven head i by the springs m. \Vhen the carrier at is pushed back to its starting end, the chuck it being released from engagement with the brake a will again hold the coil already made on the mandrel c for the coiling of another or other subsequent length or section as may be desired; the loose end of the coil being either wound around a rotating drum or wheel at the end of the mandrel until the whole length is completed or guided in a length of tubing in which it can rotate.

The dies a a each have a straight semicircular groove for the passage of the mandrel c and also an enlarged semi circular or V-grooved part for the accommodation of the wire d and the mandrel c.

As illustrated in the drawings, the brake n is operated by a treadle 6 connected with the brake n by means of a connecting rod 0 and normally supported in an elevated position by a coiled spring 7.

In cases where very fine wire is to be coiled a length of wire would constitute the central mandrel as will be readily understood.

By my invention I am enabled to coil highly tempered steel wire to any desired closeness of pitch and to any length.

What I claim as my invention and desire to secure by Letters Patent is 1. In a machine for coiling steel or other wire or metal, the combination of a sliding carrier, a pair of dies mounted therein, and a mandrel on which the wire being coiled is pressed by said dies, and means for causing the dies to clamp the coil as it is formed.

2. A coiling machine for use in the coiling of steel or other wire or metal, comprising in combination a sliding carrier, a pair of adjustably mounted dies held in said carrier, and a mandrel along which said carrier moves, one of said dies being perforated for the passage of the wire being coiled.

3. A coiling machine for use in the coiling of steel or other wire or metal, comprising in combination a pair of driven heads, a rotating mandrel driven by one of said heads, a chuck provided on the other of said heads for gripping the wire or coil, a plurality of bars mounted parallel with said mandrel, a die carrier which traverses said rotating mandrel as the wire is coiled guided by said bars, manual means for periodically and momentarily releasing the grip on said coiled wire, and means on said guide rods for insuring the return of said die carrier to its initial position upon the opening of said chuck and the release of said coiled wire.

4. A coiling machine for use in the coiling of steel or other wire or metal, comprising in combination a pair of driven heads, a rotating mandrel driven by one of said heads, a spring-controlled automatic chuck for gripping the wire or coil, a plurality of bars mounted parallel with the said mandrel, a die carrier guided by the said bars and traversing the said rotating mandrel as the wire is coiled, a brake device for engaging the chuck, and means for operating the brake device for releasing the wire, and means on said guide rods for returning the die carrier to the initial position thereof.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

SYDNEY CHARLES CADDY.

Witnesses:

J. S. WITHERS, D. BLAKEY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

' Washington, D. C. 

